It makes me wonder... as an ADL 600 owner (along with a number other preamps) has anyone considered making a 2-channel Compressor / EQ with the circuits from the ADL 700 ? I'm sure a lot of ADL 600 owners (are there a lot of us?) would be interested.

I agree! A nice 2 channel compressor that could link right into the 600 effortlessly. I just love the darn 600 as a straight-forward mic pre, so, it would be nice to have some modular options. This preamp is destined to be a very sought after piece of equipment some day! I love it on acoustic guitar!